(6 customer reviews)

MBA-2 Rifle Buttstock


The Luth-AR Modular Buttstock Assembly (MBA) for AR style rifles is designed to replace the standard buttstock on your AR. The MBA-2 Rifle Buttstock is designed to work with a standard A2 rifle style buffer tube in a low-cost, lightweight, strong and high-quality design. Similar to the MBA-1, the MBA-2 is designed for those who do not need the additional adjustability of the MBA-1. The modular design of the MBA Buttstock allows you to configure your buttstock to your specific and personal needs, by adding additional adjustability as needed, or none at all.

The MBA-1 requires a A2 Rifle buffer tube. Please review the information provided in the Requirements tab.

The MBA features multiple attachment points for a sling, including molded pockets that will accept Grovtec QD cups, sold separately. A rail attachment is available. Available in Black, or Flat Dark Earth.

  • Made In America
  • Free Standard Shipping Over $175

Add a QD Cup and QD Sling Swivel to your MBA-2…

MBA-2 Rifle Buttstock

  • 0.7 lbs Buttstock for the AR
  • Easy to add our Cheek Piece: Cheek piece will add an additional 1″ height on cheek rest
  • Easy to add our Butt Plate Assembly or 3-Axis Butt Plate Assembly: The assemblies will add an additional 1 1/16″ length of pull with extended length buttplate
  • Interchangeable with standard A2 or A1 buttstocks or any aftermarket buttstock with overall length of approximately 10.5″
  • NOT interchangeable with carbine/collapsable rifles with telescoping assemblies (6-position tubes). You will need to purchase a MBA-3 or MBA-4 to fit these carbine tubes 


Shipping costs are based on your order total and will be calculated during checkout.

Any and all Free Shipping offers apply only to Standard shipping to the Continental US as determined by Luth-AR, LLC. Priority, Overnight, 2nd Day, 3 Day Select, Next Day Air, Express, Alaska and Hawaii shipping will be charged at normal rates applied to those options.

Free Shipping generally applies only to Retail customers unless a specific offer specifies otherwise.


If an item is listed on our Website and can be Added To Cart it will typically be in stock. However, if you do not see a specific item, color, size, etc., please check back again later.

In-stock items will typically ship within 1-3 business days (M-F). If orders are larger than 50+ items we typically will ship the order within 1-2 week time period (M-F). We will do our best to ship orders complete within 1-3 business days, no guarantee. Please remember that the estimated shipping time begins once the order leaves our fulfillment facility.

Orders must be received by noon CST to allow for fulfillment by 3:00 pm CST M-F. Large orders may not ship same day. UPS typically picks up at 4:00 pm CST at the Luth-AR fulfillment location.

Weekends and Holidays do not count as fulfillment/shipping days.

All packages for continental U.S. addresses are shipped UPS or FedEx ground. Transit times will vary depending on location and you will be updated by UPS or FedEx on scheduled delivery. Orders going to Hawaii or Alaska are typically sent via Priority US Postal regardless of what shipping method is selected at checkout.

Shortly after an order is placed you will receive a confirmation email detailing specifics of the order. When an item(s) ships an order shipment email with tracking info will be sent.

Orders will be processed once successful payment is received. Payment processing may be delayed due to payment/shipping address discrepancies. We will do our best to clear each transaction as soon as possible. Our sales department may contact you to confirm your order if necessary.

All overnight, 2nd Day, 3 Day delivery requests must be confirmed by our sales department to ensure the order will be received on the day requested. Please call (763)-276-1145.


We do NOT ship internationally and all orders must have both billing and shipping addresses located within the 50 United States or District of Columbia.

While we proudly support the Members of the US Military and believe that it is a great privilege to service their needs, we must fully comply with all United States export control laws and regulations. If you would like to place a government order for any Luth-AR product(s) to be exported to an APO/FPO please contact one of our Customer Service Representatives to discuss your options.

  • International Exporter: 
  • Rainier Arms – Tom – (253) 214-0646 – tom@invoicesrainierarms-com
  • Intersec USA – Peter – info@intersecusa.com
  • European Dealer: DTS Aromory – Roy – +31475202153 – roy@dts-armory.com – website: www.dts-armory.com
  • Southern Gun Company – Bob Clark – 01208 851074 or 01208 850823 


To cover sales tax, a fee of approximately 7.375% (subject to change) will be added to the total for orders with a billing address in MN.

Although we, as the seller, are not obligated to collect sales tax for states other than MN, a purchase from us is subject to your state’s sales/use tax unless it is specifically exempt from taxation. A purchase is not exempt merely because it is made over the Internet or by other remote means. Your state, if it imposes a sales/use tax, requires that you report and pay the tax due on your purchases. Details of how to file this return may be found on your state’s department of revenue website.

All sales are FOB Shipping Point.


Luth-AR uses UPS as their primary shipping company to the lower 48 states and UPS/USPS for Hawaii and Alaska. Once our products leave our shipping facility we provide you with a tracking number and are no longer responsible for your package. If your package does not reach your destination, is stolen, or if applicable, is signed for by a different person, you must file a compliant with UPS or USPS directly. We will do everything we can to provide you all information regarding your shipment to help you resolve the situation.


If you choose to return your product, all refunds are subject to a 12% restocking feeand will be applied to the credit card used for the original purchase after you ship it back to our facility or, if the product was purchased elsewhere, store credit will be issued. This does not include shipping pricing, only for the product(s) being returned. You should allow one to two billing cycles for the refund to appear on your statement. Return and/or redelivery shipping costs are the customers’ responsibility.

If the item you received from us is not the item you ordered or it is damaged in some way, we will make every effort to replace it as soon as possible or we will gladly take back the item and credit you the merchandise price along with shipping and handling costs.


If you did not purchase the item directly from Luth-AR through our website or other direct channel, you must contact the seller or the company you purchased our products through.


Luth-AR is consistently recognized for its customer loyalty and we work hard to make sure that each purchase results in a customer for life!

Limited Warranty

Luth-AR, LLC manufactured products are warranted for 1 (one) year from the date of purchase against manufacturing defects in material and/or workmanship. All parts and labor or replacement, at our option, are covered. Government fees, damage caused by failure to perform normal maintenance, sales outside the United States, damage due to high velocity, high pressure, reloaded, or other non-standard ammunition, or any unauthorized repair, modification, misuse, abuse, or alteration of the product is not covered by this limited warranty. Consumable items such as gas rings, O’ rings, etc., are not warranted. Any product manufactured by a third party and sold by Luth-AR, will be covered under the third party warranty policy only.

Luth-AR, LLC complete assembled uppers will be warranted for a period of 1 (one) yearafter the complete upper was purchased. The warranty applies towards defects in materials or workmanship of the complete upper. Luth-AR will pay for all warranty repairs, at no charge to the consumer. Please supply a copy of the invoice for proof of purchase. The use of re-load ammunition, proof rounds, or factory ammunition that exceeds initial SAAMI specifications voids any warranty. Any repairs or modifications not done by Luth-AR also voids any warranty. Complete uppers not assembled or built by Luth-AR are not covered by the 1 (one) year warranty.

Please call our warranty department at (763) 276-1145 or email info@luth-ar.com for any warranty issues.

Alterations & Modifications Warning

Altering or modifying parts is dangerous and will void the warranty. This Luth-AR Upper/barrel  was manufactured to perform properly with the original parts as designed. It is your duty to make sure any parts you buy are made for this rifle and are installed correctly and that neither the originals nor the replacements are altered or changed. Your Luth-AR product is a complex precision tool with many parts that must relate correctly for proper and safe operation. Assembling a rifle improperly or with incorrect or modified parts can result in a damaged rifle, serious personal injury, or death to you and others through malfunction. Always have a qualified gunsmith work on your rifle, or verify proper assembly and function of any work not performed by a gunsmith.

Barrel Information Warning

To achieve the best results for accuracy you should clean the chamber and bore after every round for the first 25 rounds, then every 10 rounds up to 100 rounds. It usually takes about 200 rounds per barrel for optimum accuracy.


Luth-AR is not responsible for replacing stocks that are damaged beyond normal wear and tear (such as constant butt slams when butt plate assembly is extended (spacers will help give more support with this), dropping from high levels, running product over with any machine/vehicle, customization, etc.).

If you feel the damaged caused was due to a defective product, we ask that you mail us back your product so we can review and determine the best solution going forward.

Questions or concerns about this, please contact us directly via email at info@luth-ar.com or call 763-276-1145 and we’ll do everything within reason to help you.


To make a return, please take the following steps:

1) Before returning defective products please contact us first at info@luth-ar.com.

2) Ship the item back in the original packaging. If that is not possible, please wrap the item in bubble wrap or other quality padding and place in an appropriate box. The item must be securely wrapped inside the box during transport as we cannot be responsible for shipping damages, and please obtain tracking information in case the package is lost in transit.

3) Include a note containing your name, shipping address, phone number and email, and reason for the return (including information about the firearm, ammo, and usage environment for defective returns). Please include a copy of the receipt if possible as well.

***Packages must be returned prepaid- we do not accept COD packages.

4) Send returned item(s) to:
206 Capitol Dr
Buffalo, MN 55313

Buttstock Type





.223, .308

Buttstock Weight

11.2 oz

Length Of Pull

13 1/2"

Overall Length

10 3/8″

Cheek Rise


Additional Length-of-Pull


Available Colors

Black, Flat Dark Earth, Pink

  • Light weight stock to mount to a rifle (A2 Round Standard Tube)
  • The MBA-2 Rifle Buttstock requires an A2 Rifle buffer tube. Please review the information provided in the Requirements tab.
  • Fits .223 and .308 AR style rifles
  • Super Strong Glass Filled Nylon
  • Comes with A2 Buttstock screw to connect to A2 standard buffer tube (* Color of the A-1 screw may be black or silver)
  • Incorporates Castle Nut and Lock Ring in the design
  • 21st century look
  • Ergonomic
  • Easy to replace and quick to install


  • 0.7 lbs Buttstock for the AR
  • Easy to add our Cheek Piece: Cheek piece will add an additional 1″ height on cheek rest
  • Easy to add our Butt Plate Assembly or 3-Axis Butt Plate Assembly: The assemblies will add an additional 1 1/16″ length of pull with extended length buttplate
  • Interchangeable with standard A2 or A1 buttstocks or any aftermarket buttstock with overall length of approximately 10.5″
  • NOT interchangeable with carbine/collapsable rifles with telescoping assemblies (6-position tubes). You will need to purchase a MBA-3 or MBA-4 to fit these carbine tubes 

Compatible Buffer Assemblies:

  • .223 Rifle Buffer Assembly
  • .308 Rifle Buffer Assembly

Does Not Include, but can purchase on our website separately in Accessories section:

SKU: MBA-2B — Black

SKU: MBA-2F — Flat Dark Earth

*Note although the MBA-1 Buttstock is shown in these videos, the information also pertains to the MBA-2 Buttstock.

Parts Schematic
The MBA-1 and MBA-2 Buttstocks require the use of an A2 Rifle buffer tube. Use the diagram below to determine if you currently have an A2 buffer tube. If you have a Carbine buffer tube you may want to look at the MBA-3, MBA-4 or MBA-5 buttstock. If you are ordering an MBA buttstock kit, the proper buffer tube is included.

The differences between an A2 Rifle Buffer Tube and a Carbine Buffer Tube.

All MBA Buttstocks are Sling Swivel Ready.

This means that the buttstocks have molded pockets that accept Grovtec Sling Swivel Cups for use with Quick Detach swivels. The Sling Swivels and cups are NOT included with the buttstocks and must be ordered separately. This is to keep the cost of the MBA buttstocks down. Not every customer needs sling swivels and including them would raise the price of the buttstocks. The sling swivels are available separately. See the videos below for installation instructions using the install kit, or using a 1/4″ Allen wrench.

6 reviews for MBA-2 Rifle Buttstock

  1. Carl Karder

    Nice fit & finish. I like it a lot. The only thing I would change is make the butt pad out of hard plastic & round off on top of it. This will keep it from catching on your shirt while shooting 3-Gun. All & All It’s a nice piece & lighter than a PRS.

  2. Mike Durr

    Received the first buttstock of many that I will order. It was shipped and received in a very timely manner. The product itself is very pleasing to the eye and since it seems that form follows function it will. I believe be very functional as well. The construction is very good. made of fiber impregnated material instead of simple polymer plastic. Should be strong and quite functional. It took well to Cerakote and will soon become a part of the build I am working on. It’s eye catching style is surpassed only by it’s well balanced cheek weld and its light weight. This is truly a very nice and inexpensive part. If you are a builder and looking for something to separate a build from the other gazillion AR15’s people put together this is it. The only issue I could find and I had to look hard to come up with one is that the mold joining marks leave a rough edge that requires attending to. I used a little 800 grit sand paper on it before Cerakoting (only took a minute or two) and that made it about as close to perfect as any AR part I have ever used. For sure I will buy more, of both versions and I can’t wait to get it to the range and fire it up


    Great. MBA and MBA 2 are the stock of choice for me and my customers. They are easy to install and adjust for a ^’5” guy or a 5’2′ gal.

  4. N/A

    Looks goregous. The pictures on the website don’t do it justice. It makes an old A2 style rifle look and feel like a new weapon.

  5. Randy Mccrady

    Impressive upgrade. This stock is well made and strong. I was worried about purchasing it but don’t let the lower price fool you, this stock is awesome.

  6. roguechopper

    I’ve already used over a dozen on builds. The customers love them and so do I. Not only do they look cool, they are light weight and fit perfect for the shooter and the gun. I have them on both of my personal weapons.

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MBA-2 Rifle Buttstock